716 search results - page 110 / 144 » Optimizing Queries in Extended Relational Databases |
100
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ICDE
2007
IEEE
15 years 5 months ago
2007
IEEE
Partitioned query processing is an effective method to process continuous queries with large stateful operators in a distributed systems. This method typically partitions input da...
EDBT
2010
ACM
15 years 6 months ago
2010
ACM
Implementations of map-reduce are being used to perform many operations on very large data. We examine strategies for joining several relations in the map-reduce environment. Our ...
SIGMOD
2002
ACM
15 years 11 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
103
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VLDB
2004
ACM
15 years 4 months ago
2004
ACM
In data stream applications, data arrive continuously and can only be scanned once as the query processor has very limited memory (relative to the size of the stream) to work with...
VLDB
1995
ACM
15 years 2 months ago
1995
ACM
New demandsare put on query processing in Object-Oriented(00) databasesto provide efficient andrelationally completequery languages. A flexible 00 data model requires overloading ...